Tangential in-line air filter
US7276098B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 15, 2004 |
| Grant date | Oct 2, 2007 |
| Priority date | — |
| Expiry date | Oct 15, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2279/60
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A tangential air filter configuration is designed for applications where there is a potential for a pollutant to back flush out. The tangential in-line air filter reduces air resistance and prevents back flow, allowing the air to traverse through a forced air system during operation without resistance, and absorbs particulates and prevents back flow of fuel vapors when the forced air is at a standstill. The filter medium has a plurality of pleats or corrugations with a longitudinal axis parallel to the forced airflow direction. A diffusion barrier is formed when the forced air is at a standstill. Vapors are not passed or forced through the filter medium; rather pollutants are aggressively absorbed during diffusion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.